Home / 30,212.48-41,686.52-18,275.57

Finding the Fourth Proportional to 30,212.48, 41,686.52 and 18,275.57

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Solution

The fourth proportional to 30,212.48, 41,686.52 and 18,275.57 is: 25,216.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.48 : 41,686.52 = 18,275.57 : x
  2. Step 2: Convert to fraction form
    30,212.48/41,686.52 = 18,275.57/x
  3. Step 3: Cross multiply
    30,212.48x = 41,686.52 × 18,275.57
  4. Step 4: Simplify right side
    30,212.48x = 761,844,770.83
  5. Step 5: Solve for x
    x = 761,844,770.83/30,212.48
  6. Step 6: Final answer
    x = 25,216.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.